Airtel — payment done but recharge not done

I did a recharge of rs 399 using the airtel app for m. No.- [protected] with payment through amazon pay. The amount was deducted but the recharge was not done.

Email receipt of amazon pay -

Date: tuesday, 25 june, 2019 5:13:59 pm ist
Seller: airtel prepaid andhra pradesh
Amazon pay transaction id: p[protected]
Airtel prepaid andhra pradesh id:[protected]
Status: successful
Transaction amount: rs.399.00

I called customer care 121, the operator said the money would be refunded in 7 days. But by today (6th july) it has been 11 days and i still did not get the refund.
I have included a screenshot of the transaction. I would like either a refund or compensation in way of same value recharge on the given number.